... Channel Encoder (with IDE storage)Technical Specification:Video Input 4 channel composite video, PAL or NTSC BNC interface,1. ... Hue, Contrast, Saturation, Image quality.Streaming FormatOptional Video Streaming or Audio &Video composite StreamingVideo Frame Rate PAL: 1-25 frames/secondNTSC ... /SVideo Output 1 compound video, PAL or NTSC; BNC, level: 1.0Vp-p, impedance: 75Ω,Audio Compression G.726, G711 ...